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Finding the Third Proportional to 1,645,216 and 2,542,505

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Solution

The third proportional to 1,645,216 and 2,542,505 is: 3,929,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,216 : 2,542,505 = 2,542,505 : x
  2. Step 2: Convert to fraction form
    1,645,216/2,542,505 = 2,542,505/x
  3. Step 3: Cross multiply
    1,645,216x = 2,542,505 × 2,542,505
  4. Step 4: Simplify right side
    1,645,216x = 6,464,331,675,025
  5. Step 5: Solve for x
    x = 6,464,331,675,025/1,645,216
  6. Step 6: Final answer
    x = 3,929,168.98

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.